/*
 * Copyright (c) 2002-2019 "Neo4j,"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

export const NAME = 'drawer'

export const TOGGLE = 'drawer/TOGGLE'

function toggleDrawer (state, newState) {
  if (!newState.drawer) {
    return null
  }
  if (newState.drawer === state) {
    return null
  }
  return newState.drawer
}

export default function reducer (state = '', action) {
  switch (action.type) {
    case TOGGLE:
      return toggleDrawer(state, action.state)
  }
  return state
}

export function toggle (id) {
  return {
    type: TOGGLE,
    state: { drawer: id }
  }
}
